Data from: Parental genetic similarity and offspring performance in blue tits in relation to brood size manipulation ...

In birds, as in many other taxa, the level of genetic similarity between parents is an important source of variation in offspring fitness. The majority of avian studies which explore the influence of mates’ genetic similarity on offspring viability have focused on hatching success as a viability mea...

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Bibliographic Details
Main Authors: Arct, Aneta, Drobniak, Szymon, Mellinger, Samantha, Gustafsson, Lars, Cichon, Mariusz
Format: Dataset
Language:English
Published: Dryad 2020
Subjects:
Online Access:https://dx.doi.org/10.5061/dryad.v6r0758
https://datadryad.org/stash/dataset/doi:10.5061/dryad.v6r0758
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Summary:In birds, as in many other taxa, the level of genetic similarity between parents is an important source of variation in offspring fitness. The majority of avian studies which explore the influence of mates’ genetic similarity on offspring viability have focused on hatching success as a viability measure. Yet, viability benefits may extend into later life stages, including the nestling period and beyond. Here, we analysed data from free-living blue tits (Cyanistes caeruleus) across three breeding seasons. We investigate whether parental genetic similarity influences offspring viability in terms of body mass, tarsus length and immunocompetence. Additionally, using brood size manipulation we tested whether environmental conditions influence the magnitude and direction of the relationship between parental genetic similarity and offspring performance. Sixteen microsatellite markers were used to measure genetic similarity between biological parents. We found that a higher genetic similarity of parents negatively ... : gs_arct_ecolevol2019 ...